Attachment for gas-stoves.



'N0.`729,67o. PAT'BNTED JUNBz, 190s.

D. W. Ross. ATTACHMENT TGR4 GAS sToVTs.

APPLICATION FILED MAY 17 1902 NoMoDEL.

DONALD W. ROSS, OF

Patented June 2, 1903.

`PATENT OFFICE.

CHICAGO, ILLINOIS.

`ATTACHMENT FOR GASfSTOVES.

PECIFICATIONfoz-ming part of Letters Patent No. 729,670, dated J une 2, 1903. Application tiled May 17, `1902sV Serial No. 107,789. (No model.)

.To @ZZ whom, it may] con/cern,"

Beit known that I, DONALD W. Ross, aciti' zen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and usefulAttachment for Gas-Stoves, of which the following is a specification. i .A

This invention relates generally to gasstoves, and is in the nature of a regulator for governing the amount of gas passingto the burner, the object beingto providea cheap and simple appliance capable of attachment to the ordinary gas-stovesnow in use, and by means of which the full flow of gas is permitf ted when'an article to be heated is placed upon the stove and a reduced quantity of gas fed to the burner when the said article is removed, thereby eoonomizing in the use of the gas and also avoiding the necessity of cutting off the gas and relighting the burner each and every time an article to beheated is replaced or removed.

My invention is particularly adapted for the use of tailors, bookbinders, and the like,"V and it consists in the'novelfeatures of construction, combination, or arrange`1nent,'allv of which will be fully described hereinafter and pointed out in the claims.

In the drawings forming part of this speciication, Figure l is an' inverted plan view of a gas-stove provided with my improvement. Fig. 2 is a sectional view of the same, the parts being shown in elevation. Fig. 3 is a sectional view illustrating the movable rest and tripping-lever. Fig. 4' is ahdetail per` spective view of the movable rest. Fig. 5 is `a detail perspective view of the sleeve in which the shaft of the rest moves.l Fig. 6 is a detail perspective View of the lever. Fig. 7 is a detail view of the'bracket. Fig. 8 is a top plan view of the cut-off valve, showing. the upright rod and spring connected thereto. Referring to the drawings, A indicates the base or platform of an ordinary gas-stovehaw ing theldouble' burner A A2, to whichthe pipes A3 and A4, respectively, lead, said pipes being connected to the union-pipe A5, having the usual construction of needle-valves A. A gas-supply pipe B leads to the union-pipe A5 and has a cut-oft' valve C arranged therein, said valve having the arms C and C2 extending therefrom, the arms C having a rod 5 D connected thereto, while the arms C2 have a spiral'spring E. The opposite end of the `sprin g E is connected to the base or frame of the stove, and the normal tendency of the said spring is to throw the valve in such position that the flow of gas therethrough will `be nearly, but not entirely, cut od. The opposite end ofthe rod D is connected to a depending portion F' of a lever F, which is pivper end and in which Works the guide-pin I', llimiting "the upward and downward movement ofthe shaft I and support K. A washer L2 surrounds'the lower end of sleeve L. operationwhen an article to be heated is placed upon the support said support is depressed by the weight of the article, forcing the shaft I downwardly, and the lower end of the shaft'pressing upon the plate F3 at the end of thelever F depresses said lever, forcing the depending portion F rearwardly or .downwardly and pulling upon the rod D,

which opens the valve, permitting the full force of gas toiiiow therethrough,'thus producing a llame of maximum intensity. `.When

the article is removed, the weightFof the lever F immediatelyraises' the support to the 'position shown in dottedlines in Fig. 3, and the spring E, togetherwiththe action ofthe rod D, will operate the valve C, so as to cut V0E Vthe greater portion of fthe supply of gas, :thus permitting the burner to continue light- 1. rPhe combination with a gas-stove, of a movable support having a depending shaft, a

' sleeve in which the shaft moves, said sleeve being slotted, a stop or guide pin passing' 2. The combination with a gas-stove, a supply-pipe,'a cut-off valve arranged therein, arms attached thereto, a spring attached to one arm, a rod attached to the other arm, a Weighted lever adapted to actnate the rod, a movable support on the stove, a shaft depending from said support, a sleeve having a longitudinal slot produced therein, and a stoppin secured inthe shaft and adapted to Work in said slot and limit the movement of the support.

DONALD W. Ross.

rWitnesses.:

W. M. R. KERWIN, PAUL SCHORECK. 

